Question

Tylenchulus semipenetrans can be managed by using trifoliate orange as a:
(A) Root-stock
(B) Biofumigant
(C) Donor parent in hybrid production
(D) Trap crop
Choose the correct answer from the options given below:

• A. (A) and (B) only
• B. (B) and (D) only
• C. (A), (B) and (C) only
• D. (A) and (C) only

Hint:

For nematode control, root-stock resistance and biofumigation are sustainable integrated approaches.

Answer 1

The Correct Option is A

Step 1: Recall that Tylenchulus semipenetrans is the citrus nematode.
Step 2: Eliminate trap crop and hybrid-donor uses, trifoliate orange is not used this way against this nematode.
Step 3: Confirm rootstock and biofumigant roles fit the management practice.
Correct option: (A) and (B) only.